| 摘要 |
When a dust bag(125) is replaced from a vacuum(100), close off a hole(125d) of a card board(125) by use of a duplex adhesive(10) and a member paper(20). At this time, taking hold of a knob(25) of a protection paper(25) which is constructed on the opposite part of the corner combined with the duplex adhesive and the member paper, and taking off a protection paper(17) from an upper adhesive layer(15b) of a bag(15), the protection paper(17) is divided, connected with the member paper(20), then attaching the member paper(20) to the upper adhesive layer by placing on the upper adhesive layer, a hole(12) of the card board(125a) is sealed off by the member paper, therefore, when replacing the dust bag, the vacuum is protected from contamination leaving inner dust and material to escape outside.
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